低地板城轨车辆抗折弯液压系统分析

丁问司¹，彭晓翔²，丁云柯¹

（1.华南理工大学 机械与汽车工程学院，广东广州510641；

2.韶关液压件厂有限公司，广东韶关512029）

摘要： 在分析了低地板城轨车辆结构及运行方式的基础上，对其特有设置的抗折弯系统悬挂系统结构、原理、主要部件及技术指标进行了描述，指出了抗折弯液压系统技术运用特点。

关键词： 液压系统；抗折弯系统；低地板轻轨车；分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0001-04

Analysis of Anti-Kink Hydraulic System for Low Floor Trams

DING Wen-si¹, PENG Xiao-xiang², DING Yun-ke¹

（1. School of Mechanical and Automotive Engineering, South China University of Technology,

Guangzhou510641, China; 2. Shaoguan Hydraulic Co., Ltd., Shaoguan512029, China）

Abstract:  Based on the analysis of the structure and operation mode of low-floor urban trams, the structure, principle, components and technical parameters of the Anti-Kink hydraulic suspension system which specially set up are described, and the application characteristics of the hydraulic system technology are pointed out.

Key words: hydraulic system; anti-kink system; low floor trams; analysis

一种风力发电液压制动系统的研究<

基于AMESim的滑阀式伺服阀仿真及分析

尹言利，卞大鹏，谢磊，钱白锡

（江苏永钢集团有限公司,江苏张家港215628）

摘要： 滑阀式伺服阀在冶金连铸机振动设备上应用较为普遍，因取消了喷嘴挡板和弹簧管结构，其抗污染能力和寿命都大大增强，因此更能适应钢铁企业环境，滑阀式伺服阀资料相对较少，但工作原理较喷嘴挡板式伺服阀更难理解，该文利用仿真软件AMESim对施耐德品牌的滑阀式伺服阀（HVM-067-80）进行建模及仿真，通过仿真分析得到伺服阀的滞环曲线和泄漏曲线，并与试验台得到的数据做对比，分析其优势与不足。

关键词： 滑阀；伺服阀;仿真；分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0009-04

Simulation and Analysis of  Silid Valve Type Servo Valve Based on AMESim

YIN Yan-li, BIAN Da-peng, XIE Lei, QIAN Bai-xi

（Jiangsu Yonggang Group Steel Rolling Division, Zhangjiagang215628, China）

Abstract:  Slide valve type servo valve on metallurgical casting machine vibration equipment application is relatively common, due to the cancellation of the nozzle baffle and spring tube structure is its ability to resist pollution and life are greatly enhanced, so more can adapt to the environment, iron and steel enterprise slide valve type servo valve material is relatively small, but the working principle of the nozzle flapper servo valve is more difficult to understand, in this paper, by using the simulation software AMESim slide valve type servo valve for Schneider brand (HVM-067-80) modeling and simulation of the hysteresis curve of the servo valve is obtained by the simulation analysis and the leak curve, and compared with data obtained from test stand to do, to analyze its advantages and disadvantages.

Key words: slide valve; servo valve; simulation; analysis

坦克高低向稳定器动力油缸动态仿真

赵广俊¹，刘斌¹，宁建建²，苏棋圣¹

(1.32150部队36分队，河南开封475003； 2.63896部队技术室，河南洛阳471000）

摘要： 为了对坦克高低向稳定器动力油缸进行动态仿真，该文介绍了某型坦克动力油缸的结构和工作原理；利用AMESim软件分别建立了动力油缸和高低向稳定器的仿真模型；在不同的故障和工作模式下，输入激励信号，得到了系统主要特性参数的变化曲线和动态特征，为动力油缸的维护保养和故障排除提供参考。

关键词： 坦克；动力油缸；AMESim建模；动态仿真

中图分类号：TH137；TJ302文献标志码：A文章编号：1008-0813（2020）10-0012-03

Dynamic Simulation on Power Cylinder of Tank Vertical Stabilizer

ZHAO Guang-jun1, LIU Bin1, NING Jian-jian2, SU Qi-sheng1

(1. 36 Sub Unit, 32150 Troops, Kaifeng475003, China;

2. Engineering Office, 63896 Troops, Luoyang471000, China)

Abstract:  In order to do dynamic simulation on power cylinder of tank vertical stabilizer, this paper introduced the configuration and working principle of power cylinder in one tank; simulation model of power cylinder and vertical stabilizer were both established in AMESim; under different fault and working modes, excitation signal were input, and the variation curves with dynamic features of main characteristic parameters of the system were obtained, which provided a reference for maintenance and elimination of breakdown of power cylinder.

Key words: tank; power cylinder; AMESim modeling; dynamic simulation

温压传感器在机载液压泵上的应用研究

米月星，王剑，江辉军，李振水

（航空工业第一飞机设计研究院，陕西西安710089）

摘要： 液压泵是机载液压系统的关键核心部件，也是液压系统的主要发热源。针对泵壳体回油不畅导致的系统故障和安全隐患，泵回油路加装温压一体传感器，对回油温度和压力进行实时监控，提前预测液压泵的温度异常升高趋势，提高液压系统的故障预测和健康管理能力。通过试验测试，验证了液压泵回油不畅时的温度和压力变化趋势，为故障监控和预测提供详实的数据支持。

关键词： 机载液压泵；温压传感器；应用；故障预测

中图分类号：TH137;TH39文献标志码：A文章编号：1008-0813（2020）10-0015-03

Application of Temperature and Pressure Transducer on Airborne Hydraulic Pump

MI Yue-xing, WANG Jian, JIANG Hui-jun, LI Zhen-shui

(AVIC the First Aircraft Institute, Xi^,an710089, China)

Abstract:  The hydraulic pump is the key component and also a major source of heat for the airborne hydraulic system. Aiming at the system failure and safety hazard caused by the poor oil return volume, a temperature and pressure sensor is installed on the oil return circuit. Therefore, the oil return temperature and pressure are detected in real time. In this way, the abnormal temperature rise trend of hydraulic pump can be predicted in advance, and the fault prediction and health management ability of hydraulic system can be improved. Through the test, the temperature and pressure change trend of the hydraulic pump when the return oil is not smooth is verified, providing detailed data support for fault monitoring and prediction.

Key words: airborne hydraulic pump； temperature and pressure transducer； application； failure prediction

向家坝升船机船厢对接锁定装置的液压控制设计

段惠玲

（太重集团榆次液压工业有限公司，山西榆次030600）

摘要： 该文结合向家坝升船机船厢对接锁定装置的结构组成与功能，重点阐述了向家坝升船机船厢对接锁定装置的液压控制设计机理，为向家坝升船机的安全可靠运行提供了保障。

关键词： 升船机；船厢对接锁定装置；液压控制；设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0018-03

Hydraulic Control Design of Docking Lock Device for XIANGJIABA Ship Lift

DUAN Hui-ling

（Taiyuan Heavy Machinery Group Yuci Hydraulic Industry Co. Ltd., Yuci030600, China）

Abstract:  Combined with the structure and function of Xiangjiaba ship lift car docking locking device, this paper focuses on the hydraulic control design mechanism of Xiangjiaba ship lift car docking locking device, which provides a guarantee for the safe and reliable operation of Xiangjiaba ship lift.

Key words: ship lift; lock device of docking of cabin; hydraulic control; design

气化炉液压系统额定工作压力分析研究

陈龙姣，赵晓培

(太重集团榆次液压工业有限公司，山西榆次030600)

摘要： 该文对气化炉液压系统的额定工作压力进行了分析，首先对气化炉煤锁上阀、下阀和灰锁上阀、下阀进行了受力分析，然后通过液压系统设计理论，以及压力损失分析和安全系数，来最终确认气化炉液压系统的额定工作压力大小，为气化炉的液压系统设计提供了一定的理论依据。

关键词： 汽化炉；受力分析；液压系统；额定工作压力

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0020-03

Research on Rated Working Pressure of Hydraulic System for Gasifier

CHEN Long-jiao, ZHAO Xiao-pei

(Taiyuan Heavy machinery Group Yuci Hydraulic Industry Co., Ltd., Yuci030600, China)

Abstract:  In this paper, the rated working pressure of gasifier hydraulic system was analyzed. Firstly, the stress of upper-valve, lower-valve of coal lock and upper-valve and lower-valve ash Lock were analyzed. Then, the rated working pressure of gasifier hydraulic system was finally confirmed through the hydraulic system design theory, the pressure loss analysis and factor of safety. This paper provides a theoretical basis for the design of the hydraulic system of gasifier.

Key words: gasifier; force analysis; hydraulic system; rated working pressure

工程机械卷扬平衡阀性能提升设计研究

张笑^1，2，李波³

（1.江苏徐工工程机械研究院有限公司，江苏徐州221004;

2.高端工程机械智能制造国家重点实验室，江苏徐州221004; 3.徐州重型机械有限公司，江苏徐州221004)

摘要： 分析当前工程机械用卷扬平衡阀特点，进行卷扬平衡阀结构提升设计；采用正先导比及双弹簧设计以提升其安全性，主弹簧腔到回油口设定双阻尼提升其控制稳定性及可靠性，优化节流阀芯过流面积以提升其操控性，设定单向阀，在阀芯关闭时能迅速关闭，确保控制可靠性，先导压力油直接作用主阀芯，保证控制稳定情况下更节能，且结构简单；同时进行了轻载及重载工况测试验证，满足卷扬系统控制要求。

关键词： 起重机；卷扬系统；平衡阀；提升设计

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0022-03

Improved Design and Research of Counterbalance Valve for Construction Machinery

ZHANG Xiao^1，2，  LI Bo³

(1. Jiangsu XCMG Construction Machinery Research Institute Co., Ltd., Xuzhou221004, China;

2. State Key Laboratory of Intelligent Manufacturing of Advanced Construction Machinery, Xuzhou221004, China;

3. Xuzhou Heavy Machinery Co., Ltd., Xuzhou 221004, China)

Abstract:  Taking the winch counterbalance valve for construction machinery as research object, analyzes the characteristics and conduct the improved designs. Adopting positive pilot ratio and double spring to enhance the safety; setting double damping orifices from the main spring chamber to oil return port to improve its control stability and reliability; optimize the flow area of the throttle piston to improve its controllability, by the check valve， when close the counterbalance valve， can quickly closed to ensure the stability， and the pilot pressure acts directly on throttle piston to ensures more energy saving under stable control. Meanwhile, it has been tested and verified under light load and heavy load conditions, the test results meet the control requirements of winch system.

Key words: crane； winch system; counterbalance valve； improved design

基于煤矿专用设备试验站液压装置系统设计

李荣丽

（陕西国防工业职业技术学院，陕西西安710300）

摘要： 该文重点介绍采用集中液压站控制，采用变量系统，可对大负载设备进行动作试验；对设备做一些简单故障判断；采用电液控制，提高工作效率，集中控制台，操作方便；适用范围大，适用种类多；集中试验台便于试验，检修，故障处理。

关键词： 煤矿；专用设备试验站；液压；设计

中图分类号：TH137；TD421文献标志码：A文章编号：1008-0813（2020）10-0025-03

Design of Hydraulic Device System with Coal Mine Special Equipment Test Station

LI Rong-li

(Shaanxi Institute of Technology, Xi^,an 710300， China)

Abstract:  This paper focuses on the use of centralized hydraulic station control, variable system, can be large load equipment operation test, some simple fault judgment equipment, electro-hydraulic control, improve working efficiency, centralized console, easy to operate; the application scope is big, the application type is many; the centralized test-bed is easy to test, overhaul, the breakdown processing.

Key words: coal mine; special equipment test station; hydraulic; design

LZ580/73-1350连续管钻机液压系统研究

祝卓华

（中海石油（中国）有限公司上海分公司，上海200338）

摘要： 该文分析了连续管钻机液压系统的设计的主要技术难点及解决方案，确定了液压系统的总体方案，完成了连续管钻机液压系统的理论设计。

关键词： 连续管钻机；液压；系统；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0027-03

Research on Hydraulic System of CT Drilling Rig

ZHU Zhuo-hua

(CNOOC (China) Co., Ltd., Shanghai Branch, Shanghai200338, China)

Abstract:  This paper analyzes the main technical difficulties and solutions of the hydraulic system of the coiled tubing (CT) drilling machine, determines the overall scheme of the hydraulic system, and completes the theoretical design of the hydraulic system of CT drilling rig.

Key words: CT drilling rig; hydraulic; system; research

气动自动打磨系统的设计与研究

杨海荣

（常州铁道高等职业技术学校轨道交通系，江苏常州213011）

摘要： 为了满足生产需要，设计了一种气动打磨系统，可实现对工件4个面进行打磨，工件表面的粗糙度可控制在工艺要求范围内，打磨系统采用气动结构，运行可靠，打磨精度高。同时对打磨工艺做了研究，分析了打磨力、砂纸、打磨次数、反复打磨进给速度等因素对工件表面粗糙度的影响，制定了合理的打磨工艺，取得了良好的使用效果。

关键词： 气动；打磨；系统；研究

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）10-0030-03

Design and Research of Pneumatic Automatic Grinding System

YANG Hai-rong

(The High Railway Professional Technical School of Chang Zhou, Rail Transit Department,Changzhou 213011, China)

Abstract:  In order to meet the needs of production, a pneumatic grinding system is designed, which can grind four surfaces of the workpiece. The roughness of the workpiece surface can be controlled within the range of technological requirements. The pneumatic structure was adopted in the grinding system, the machine runs reliably and has high grinding accuracy. At the same time, the grinding process was studied, and the effects of grinding force, sandpaper, grinding times, feed speed of repeated grinding on the surface roughness of the workpiece were analyzed. A reasonable grinding process was formulated and good results were achieved.

Key words: pneumatic; grinding; system; research

基于有限元分析的大口径海水闸阀设计及研究

袁向阳,陈宁

(中国电建集团上海能源装备有限公司，上海201317)

摘要： 为提高在海洋工程领域中国内阀门行业的创新能力，力求开拓船舶行业高端阀门市场，该文根据大口径海水闸阀实际工况及功能设计各零部件结构并建立模型，采用理论计算与有限元分析验证相结合的方法对闸阀关键零部件进行结构强度和抗冲击性能研究，并建立了闸阀中衬套磨损量分别与载荷、阀门启闭次数的关系，为进一步研究大口径海水闸阀结构及其使用寿命提供必要的理论基础。

关键词： 闸阀；有限元分析；抗冲击性能；磨损量

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0033-005

Design and Research of Large-calibred Seawater Gate Valve Based on

Finite Element Analysis

YUAN Xiang-yang, CHEN Ning

(Powerchina SPEM Company Limited, Shanghai201317, China)

Abstract:  In order to improve the innovation ability of China's valve industry in the field of offshore engineering, and strive to develop the high-end valve market in the shipbuilding industry, in this paper designs the structure of each component and establishes the model according to the actual working conditions and required functions of the large-diameter seawater gate valve, and studies the structural strength and impact resistance of the key parts of the gate valve by combining theoretical calculation with finite element analysis, the relationship between the abrasion loss amount of bushing and the load and the opening and closing times of the valve is established, which provides the necessary theoretical basis for further research on the structure and service life of the large diameter seawater gate valve.

Key words: gate valve; finite element analysis; impact resistance; abrasion loss

斜盘式柱塞泵卡盘运动特性研究

刘雨¹，张龙²，马吉光¹，杨华¹

（1.中航力源液压股份有限公司，贵州贵阳550018；

2.空装成都局驻贵阳第三军事代表室，贵州贵阳550018）

摘要： 对斜盘式柱塞泵卡盘的运动学特性进行了分析与推导，得出了斜盘摆角、卡盘圆孔直径、滑履颈部直径、卡盘圆孔分布圆半径和柱塞孔分布圆半径是影响卡盘运动平稳性的主要参数，并通过多体动力学软件仿真论证了相关数学模型的正确性，为斜盘式柱塞泵的结构设计提供了重要参考。

关键词： 斜盘；柱塞泵；卡盘；运动特性；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0038-05

Study on Retaining Plate Kinetic Characteristics of Swashplate Piston Pump

LIU Yu¹, ZHANG Long², MA Ji-guang¹, YANG Hua¹

（1. AVIC Liyuan Hydraulic Inc., Guiyang550018, China；

2. Quality Representative, Guiyang550018, China）

Abstract:  Through analyze and deduce the retaining plate kinetic characteristics of swashplate piston pump, obtained that the swashplate angular, the hole diameter of retaining plate, the neck diameter of slipper, the distribution circle radius of the retaining plate hole and the piston hole are the key parameters which can influence the operation stability of the retaining plate, and verify the correctness of the relevant mathematical model base on the multi-body dynamics software. The results can provide an important reference for design of the swashplate piston pump.

Key words: swashplate; piston pump; retaining plate; kinetic characteristics; study

基于高频响液压伺服控制技术的连铸机

自动开浇仿真试验与研究开发

丘铭军¹,焦悦¹,周波²,王亚强¹,赵春丽¹

(1.中国重型机械研究院股份公司西安市重型机械高端液压技术与装备工程技术研究中心,陕西西安710032;

2.涟源钢铁集团有限公司210转炉厂,湖南娄底417009)

摘要： 自动开浇技术是现代连铸机的关键技术之一，对于提高连铸机的自动化程度，保证设备安全生产，降低工人劳动强度，提高铸坯质量与产量，减少溢钢和漏钢事故以及提高连铸的管理水平具有重要意义。该文利用MATLAB/Simulink软件，针对某现代化板坯连铸机钢水液面控制液压伺服系统进行了建模研究、仿真分析及现场试验，结果表明液压伺服控制系统动静态特性完全满足工艺要求，为自动开浇的成功实施奠定了基础。

关键词： 连铸机；自动开浇；液压伺服控制；仿真

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0043-04

Simulation Test and Research of Continuous Caster Automatic Pouring with

High Frequency Response Hydraulic Servo Control Technology

QIU Ming-jun1, JIAO Yue1, ZHOU Bo2, WANG Ya-qiang1, ZHAO Chun-li1

(1. China National Heavy Machinery Research Institute Co., Ltd., Xi^,an Heavy Machinery High-end

Hydraulic Technology and Equipment Engineering Technology Research Center, Xi,an710032, China;

2. Lianyuan Iron & Steel Group Co., Ltd., Loudi417009, China)

Abstract:  Automatic pouring casting technology is one of the key technologies of modern continuous casting machine, which can improve the automation degree of continuous casting machine and ensure the safety production of equipment, reduce the labor intensity of workers, improve the quality and output of slab, reduce the accidents of steel overflow and steel leakage, and improve the management level of continuous casting. In this paper, using MATLAB/Simulink software, the modeling research, simulation analysis and field test of the hydraulic servo system for liquid steel level control of a modern slab caster are carried out. The results show that the dynamic and static characteristics of the hydraulic servo control system fully meet the process requirements, it lays a foundation for the successful implementation of automatic casting.

Key words: continuous caster; automatic pouring; hydraulic servo control; simulation

便捷式氮气增压提纯装置的设计

任再青，王建辉

Design of Convenient Nitrogen Pressurization Purification Device

REN Zai-qing, WANG Jian-hui

(空军工程大学航空机务士官学校， 河南信阳464000)

摘要： 针对航空兵部队飞行场站制氮装置制氮慢，氮气纯度低等问题,利用PSA制氮原理,设计一种航空氮气增压提纯装置。该装置由减压阀、PSA制氮单元、调压阀，安全阀等部分组成。该装置可以为多种军用飞机提供氮气，纯度符合要求，产气快，移动轻便，满足航空兵部队对制氮装置的需求，在应用中取得良好效果。

关键词：飞机；氮气；提纯；装置

中图分类号：TH138文献标志码：B文章编号：1008-0813（2020）10-0046-02

不同结构类型喷嘴对冰粒射流清洗效果的影响

郑小涛，姚景山，傅波

(四川大学机械工程学院，四川成都610065)

摘要： 喷嘴是冰粒射流清洗系统的重要部件，其结构类型对清洗效果有重要影响。在分析了冰粒射流清洗系统工作原理的基础上，对直线型、收缩型和文丘里型3种喷嘴进行了结构设计。利用计算流体动力学分析软件Fluent，对3种喷嘴内部水流速度场与射入大气环境中的自由射流流场进行了仿真；同时对离散相固态冰颗粒的运动速度与轨迹进行了分析，对比了3种喷嘴的喷射特点。搭建实验平台，分别使用3种喷嘴进行了清洗实验。研究结果表明，3种喷嘴用于冰粒射流清洗的效果明显好于纯水射流清洗，其中收缩型喷嘴的清洗率最高。

关键词： 冰粒；射流清洗；喷嘴；流场分析

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0048-06

Influence of Different Nozzles on Cleaning Effect of Ice Jet

ZHENG Xiao-tao, YAO Jing-shan, FU Bo

(School of Mechanical Engineering, Sichuan University, Chengdu610065, China)

Abstract:  Nozzle is an important part of ice jet cleaning system. Its structure type has important influence on the cleaning effect. A jet cleaning system with ice particles is established, which adopts three nozzles with different structures, namely, linear, contracting-type and Venturi type. Based on Fluent, the internal flow fields in three kinds of nozzles and the flow field in the atmosphere are simulated. At the same time, the movement velocity and trajectory of discrete phase solid ice particle are analyzed. The experimental platform is built and three kinds of nozzles are used for cleaning experiments. Results show that the quality of ice jet cleaning is better than pure water jet cleaning quality for the three nozzles, and the contracting-type nozzle has the highest cleaning rate.

Key words: ice particles; jet clean; nozzle; flow field analysis

一种新型四工位钻攻组合专机

唐睦，周宗恩

（蚌埠液力机械有限公司，安徽蚌埠233030）

摘要： 活塞作为油缸的核心元件，其油孔影响着油缸的缓冲性能。该文提出一种新型四工位钻攻组合专机，利用四等分机构并配和动力头、气动夹紧定位等装置，保证加工的精度和安全性，不但提升了活塞油孔的加工效率，而且提高了加工质量和操作的安全性。

关键词： 新型；四工位；钻孔和攻组；专机

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0054-03

A New Type Four-station Drilling and Tapping Special Machine

TANG Mu， ZHOU Zong-en

(Bengbu Hydraulic Machinery Co., Ltd.， Bengbu233030， China)

Abstract:   The piston is the core component of a hydraulic cylinder, and its oil hole affects the cushioning performance of the hydraulic cylinder. This paper proposes a new type of four-station drilling and tapping special plane, which uses a four-part mechanism and a power head, pneumatic clamping and positioning devices to ensure the accuracy and safety of processing, which not only improves the processing efficiency of the piston oil hole, but also Improve the processing quality and operation safety.

Key words: new type; four-station; drilling and tapping; special machine

基于网络通讯的阀用电磁铁推力特性

测试系统研究

林之楠

（湖南科技大学机电工程学院，湖南湘潭411201）

摘要： 位移-力特性是评估电磁铁性能的重要指标，鉴于网络通讯是计算机控制的重要途径，设计出了电磁铁推力性能测试台，采用网络实现EM9636采集卡与计算机的通讯，研制了电磁铁力特性测试台和控制软件。试验结果表明：该系统操作简单、测试方便、实验数据准确可靠。

关键词： 网络通讯；电磁铁；推力特性；研究

中图分类号：TH137；TP206+.1文献标志码：A文章编号：1008-0813（2020）10-0057-04

Research on Test System for Measuring Force Characteristic of Solenoid

Based on Network Communication

LIN Zhi-nan

（School of Electromechanical Engineering Hunan University of Science and Technology, Xiangtan411201, China）

Abstract:  Displacement-Force characteristic is an important index for evaluating solenoid. Considering that network communication is an important way for computer control, a force characteristic of solenoid test bench is designed. Network communication is adopted to realize communication between computer and EM9636 acquisition card. Force characteristic of solenoid test bench and the control software are developed. Test results show that the system is simple and convenient to operate. Experimental data is accurate and reliable.

Key words: network communication; solenoid; force characteristic; research

电静液作动器（EHA）热设计方法研究

白亮亮,韩涛,申月

（庆安集团有限公司，陕西西安710077）

摘要： 该文根据飞机作动系统发展趋势和电静液作动器特性，提出了将虚拟热仿真的方法应用到EHA热设计中，对该EHA热设计进行研究，形成了一种热设计、验证、改进的方法。实例基于功率损失法对某电静液作动器进行仿真分析，根据仿真结果提出热设计优化措施，掌握了热设计方法。

关键词： 电静液作动器；热设计；方法；研究

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0061-06

Research of Thermal Design Method of Electrohydrostatic Actuator (EHA)

BAI Liang-liang, HAN Tao, SHEN Yue

(Qingan Group Co., Ltd., Xi,an710077, China)

Abstract:  According to the development trend of aircraft actuation system and the characteristics of electrohydrostatic actuators, this paper proposes applying a virtual thermal simulation method to EHA thermal design and studies the EHA thermal design to form a thermal design, verification and improved method. The instance makes simulation analysis of an electrohydrostatic actuator based on the power loss method, according to the simulation results, the thermal design optimization measures are proposed and the thermal design method is mastered.

Key words: electrohydrostatic actuator; thermal design; method; research

换向阀远程三位控制研究及应用探讨

高巧娟,郑翔，吴楠,刘瀛,陈睿

（中国石油集团工程技术研究院北京石油机械有限公司，北京102206）

摘要： 介绍了常规换向阀的结构，驱动方式以及远程三位换向面临的主要问题，提出分别通过本体和驱动方式改进升级，实现换向阀三位远程操作。介绍了滑阀式换向阀本体结构，分析了滑阀式换向阀与转阀式换向阀区别；介绍了双杆双行程气缸、单杆双行程气缸以及伺服驱动缸的结构和运行特性，通过结构对比，明确了双行程气缸驱动转阀式换向阀远程三位控制在地面防喷器控制装置中应用的发展方向。

关键词： 换向阀;远程;三位控制;研究

中图分类号：TH137；TH138文献标志码：A文章编号：1008-0813（2020）10-0067-04

Research and Application of Remote Three Position Control for Directional Valve

GAO Qiao-juan, ZHENG Xiang, WU Nan, LIU Ying, CHEN Rui

(Beijing Petroleum Machinery Company， CNPC Engineering Technology Institute, Beijing102206, China)

Abstract:  This paper introduces the structure, driving mode and main problems of the current directional control valve, and puts forward to realize the remote operation of the directional control valve through the improvement of the body and driving mode respectively. The body structure of slide valve type reversing valve is introduced, the difference between slide valve type reversing valve and rotary valve type reversing valve is analyzed. This paper introduces the structure and operation characteristics of the double-rod double-stroke cylinder, the single-rod double-stroke cylinder and the servo drive cylinder. Through structural comparison, the development direction of remote three position control of directional valve driven by double stroke cylinder in the ground BOP control device is clarified.

Key words: directional valve; remote; three position control; research

二维无接触输运建模仿真与试验研究

林以恒，杨锐，钟伟

（江苏科技大学机械工程学院,江苏镇江212003）

摘要： 众多行业需要利用无接触的方式输运清洁和易损的产品。该文介绍了一种二维完全无接触气浮输运平台，分析间隙内气体流动情况。建立间隙内气流简化模型，并针对黏性力进行了理论和试验研究。结果表明，黏性力受到气膜间隙厚度和吸气流量的影响。在相同的间隙厚度下，黏性力随着驱动单元数量的增加而增加，并且随着气膜间隙厚度的增加而减小。

关键词： 无接触运输；建模；仿真；研究

中图分类号：TH138文献标志码：A文章编号：1008-0813（2020）10-0071-05

Modeling Simulation and Experimental Study of 2-DOF Contactless Transport

LIN Yi-heng, YANG Rui, ZHONG Wei

（School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang212003， China）

Abstract:  Many industries require contactless transport of delicate or clean products. This paper introduces a 2-DOFcompletely contactlessairfilmconveyorand analyzes the air flow in the gap. A simplified model of the airflow in the gap is established, and theoretical and experimental studies are conductedto obtain the viscous force. The results show that the viscous force is affected by the thickness of the film gap and the suction flow rate. The viscous force increases at the same gap thickness as the number of the actuatingunits increases, and decreases as the thickness of the film gap increases.

Key words: contactless transport; modeling; simulation; study

一种组网的中央液压源的组成及原理

吕少力，王秋香

（中航飞机起落架有限责任公司，陕西汉中723200）

摘要： 该文提出了一种基于组网的中央液压源技术。该技术对传统的液压集中泵站进行了创新，采用了自适应进行泵站流量匹配技术、终端设备的恒流量恒压力控制技术等，使得一台中央液压源并联多台终端设备组成电液网络，形成可共用、抗串扰、屏蔽强的设备功效，为提高中央液压源的可靠性、提高使用效率发挥积极作用。

关键词： 组网；中央液压源；组成；原理

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0076-05

The Composition and Principle of the Netted Central Hydraulic Pressure Source

LV Shao-li， WANG Qiu-xiang

（AVIC Landing-gear Advanced Manufacturing Corporation， Hanzhong723200， China）

Abstract:  This paper presents a central hydraulic pressure source technology based on networking. The technology innovates the traditional hydraulic concentrative pumping station, adopts the Self-adaption pumping station flow matching technology and constant flow pressure control technology for terminal equipment, etc. Make one central hydraulic pressure source parallel connection more terminal units composing electricity-hydraulic network, forming in common, anti-crosstalk, shielding strong function of the equipment. It plays an active role in improving the reliability and efficiency of the central hydraulic pressure source.

Key words: netted; central hydraulic source; composition; principle

某民用飞机主起上位锁开锁压力过大

问题分析与解决

辛艳

（中航工业西飞民用飞机有限责任公司，陕西西安710089）

摘要： 在某新型民用飞机起落架收放研发试验中，发现主起落架上位锁开锁压力过大的问题，针对问题进行了理论分析，认为主起落架放下时，油液同时到达收放作动筒和上位锁开锁作动筒，但由于收放作动筒油液作用面积大于上位锁开锁作动筒油液作用面积，使得收放作动筒在上位锁开锁前将力施加到上位锁上，并通过试验验证了此分析结论的正确性，为改进设计方案提供了试验依据。

关键词： 主起落架；上位锁；开锁作动筒；开锁压力

中图分类号：TH137;V226文献标志码：A文章编号：1008-0813（2020）10-0079-04

Analysis and Solution on the Over Pressure of the Main Landing Gear Uplock for a Civil Aircraft

XIN Yan

（AVIC XAC Commercial Aircraft Co., Ltd., Xi,an710089, China）

Abstract:  In the landing gear retraction development test of a civil aircraft, it is found that the unlocking pressure of the uplock of the main landing gear is too large. According to the theoretical analysis of the problem, it is considered that when the main landing gear is put down, the oil reaches the retraction actuator and the uplock unlocking actuator at the same time. However, because the oil area of the retraction actuator is larger than that of the upper lock unlocking actuator, the actuator applies the force to the uplock first before the uplock is unlocked, and the following test verifies the correctness of the analysis conclusion, which provides the test basis for improving the design scheme.

Key words: main landing gear; uplock; unlock actuator; unlock pressure

离心泵叶顶间隙测量方法

王向前，李海英，赵洪锋

（河南航天工业有限责任公司，河南郑州451191）

摘要： 离心泵叶顶间隙大小对其出口压力和流量性能影响较大，合理的叶顶装配间隙非常重要。结合生产实践，该文总结了一些叶顶间隙的测量方法，以最小的误差测得叶顶间隙值，为装调和试验提供可靠依据。

关键词： 离心泵；叶顶间隙；测量；装调

中图分类号：TH137文献标志码：A文章编号：1008-0813（2020）10-0082-02

The Measurement Method of Centrifugal Pump Tip Clearance

WANG Xiang-qian, LI Hai-ying, ZHAO Hong-feng

（Henan Aerospace Industry Co., Ltd., Zhengzhou451191, China）

Abstract:  The tip clearance of centrifugal pump has a great influence on its outlet pressure and flow performance, reasonable tip clearance is very important. Combined with production practice, some methods of measuring tip clearance are summarized in the paper, the minimum error is used to measure tip clearance, which provides a reliable basis for assembly and test.

Key words: centrifugal pump; tip clearance; measurement; assembly and debugging

基于能量熵特征的挖掘机液压系统故障诊断

王衡,傅波,田鹏,柳晓东

(四川大学机械工程学院，四川成都610065)

摘要： 液压系统作为挖掘机的核心组成，其工作的可靠性将直接影响主机的性能。在现有较为先进的故障模式判别方法中，选择应用小波包分析计算故障信号的能量熵，构造特征向量输入到支持向量机中进行训练，判定故障的类型。该文融合小波包数据处理技术和支持向量机故障模式识别技术来实现故障的有效判别，完成了液压系统的状态监测及故障诊断系统的搭建。通过测试发现，故障识别的准确率良好，试验结果也验证了支持向量机在处理小样本方面的优势所在。

关键词： 挖掘机；液压系统；支持向量机；小波包分解

中图分类号：TH137；TH133.33；TP206文献标志码：A文章编号：1008-0813（2020）10-0084-06

Excavator Hydraulic System Fault Diagnosis Based on Energy Entropy

WANG Heng, FU Bo, TIAN Peng, LIU Xiao-dong

(School of Mechanical Engineering, Sichuan University, Chengdu610065, China)

Abstract:  As the core component of excavator, the reliability of hydraulic system will directly affect the performance of the main engine. Among the advanced methods of fault pattern recognition, wavelet packet analysis is used to calculate the energy entropy of fault signal, and eigenvectors are constructed and input to support vector machine for training to determine the type of fault.This essay integrates wavelet packet data processing technology and support vector machine fault pattern recognition technology to realize effective fault identification, and completes the construction of condition monitoring and fault diagnosis system of hydraulic system. The test results show that the accuracy of fault identification is good, and the experimental results also verify the advantages of support vector machine in dealing with small samples.

Key words: excavator； hydraulic system； support vector machine; wavelet packet decomposition

热油泵机械密封失效分析及结构改造

郭明明1,杨勇2,张聪俐2,吴凤超2,张鹏飞1

（1.中密控股股份有限公司,四川成都610045；

2.内蒙古伊泰化工有限责任公司，内蒙鄂尔多斯017000）

摘要： 通常加氢精制装置和加氢裂化装置中的分馏塔进料泵、分馏塔底泵、减压塔底泵输送介质为石蜡、柴油、石脑油，工作温度介于310℃~360℃，这3种高温热油泵是装置中的关键设备，由于输送的介质是高温油液，一旦泄漏极易造成火灾事故。热油泵故障停车将导致全厂停车。经过分析发现机械密封冲洗系统和机械密封结构存在一些缺点，通过改进密封结构解决了寿命短的问题，达到了预期寿命。

关键词： 热油泵；机械密封；失效；分析

中图分类号：TB42文献标志码：A文章编号：1008-0813（2020）10-0090-03

Mechanical Seal Failure Analysis And Structure Retrofit of Thermal Oil Pump

GUO Ming-ming1, YANG Yong2, ZHANG Cong-li2, WU Feng-chao2, ZHANG Peng-fei1

(1. Sinoseal Holding Co., Ltd., Chengdu610045, China;

2. Inner Mongolia Yitai Chemical Co., Ltd., Ordos017000,China)

Abstract:  Usually Fractionation Tower feed pump, Fractionation Tower bottom pump, Decompression Tower bottom pump are critical equipment in Hydrofining unit and Hydrocracking unit, and process fluid is Paraffin, diesel, naphtha with high temperature 310-360 ℃. Since the process medium is high temperature oil, once it leaks, it is easy to cause a fire accident. The failure of the hot oil pump will cause the whole plant to stop. After analysis, we found that the mechanical seal flash system and mechanical seal structure have some shortcomings, and prolonged the seal life by improving the seal structure, and reached the expected life.

Key words: hot oil pump; mechanical seal; failure; analysis

高压油管自动TIG焊接工艺研究

李斯

（徐州徐工液压件有限公司,江苏徐州221004）

摘要： 液压缸油管焊接成形差且漏油率高，该文对产品结构进行了分析,探究了原焊接工艺的缺陷并进行了改进。通过对焊接试验数据的整理分析，调整焊接设备，制作辅助工装夹具，改善焊接参数，最终制定了液压缸油管自动TIG焊接工艺，从根本上控制了焊接缺陷、极大降低了残次品的数量。

关键词： 液压油管；氩弧焊；焊接工艺；研究

中图分类号：TH137;TG444文献标志码：A文章编号：1008-0813（2020）10-0093-04

Research on Automatic TIG Welding Process for High Pressure Oil Pipe

LI Si

（Xuzhou XCMG Hydraulics Co., Ltd., Xuzhou221004, China）

Abstract:  Due to poor welding formation, the oil leakage rate of the hydraulic cylinder tubing is high. This article analyzes the product structure, explores the defects of the original welding process and improves it. Through the analysis of welding test data, adjusting welding equipment, making auxiliary tooling fixtures, and improving welding parameters, the automatic TIG welding process for hydraulic cylinder tubing was finally formulated, which fundamentally controlled welding defects and greatly reduced the number of defective products.

Key words: hydraulic tubing; argon arc welding; welding process; research